From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Fri, 31 Oct 2008 23:25:45 +0000 (-0500)
Subject: hooked in page table walkers for 64 bit page table activation
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=11b5cccde17af54f3998c38952e0eeedf85ced0a

hooked in page table walkers for 64 bit page table activation
bug fixes
---

diff --git a/palacios/include/palacios/vmm_paging.h b/palacios/include/palacios/vmm_paging.h
index b2e0a65..15c089a 100644
--- a/palacios/include/palacios/vmm_paging.h
+++ b/palacios/include/palacios/vmm_paging.h
@@ -538,7 +538,7 @@ int v3_check_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t va
 
 
 int v3_walk_host_pt_32(v3_reg_t host_cr3,
-		       int (*callback)(int level, addr_t page_va, addr_t page_pa, void * private_data),
+		       void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
 		       void * private_data);
 
 int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
@@ -548,6 +548,18 @@ int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
 int v3_walk_host_pt_64(v3_reg_t host_cr3,
 		       void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
 		       void * private_data);
+
+int v3_walk_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3,
+		       void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
+		       void * private_data);
+
+int v3_walk_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3,
+			  void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
+			  void * private_data);
+
+int v3_walk_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3,
+		       void (*callback)(page_type_t type, addr_t page_va, addr_t page_pa, void * private_data),
+		       void * private_data);
   
 struct guest_info;
 
diff --git a/palacios/src/palacios/vmm_paging.c b/palacios/src/palacios/vmm_paging.c
index edcab77..f63ddf1 100644
--- a/palacios/src/palacios/vmm_paging.c
+++ b/palacios/src/palacios/vmm_paging.c
@@ -1412,7 +1412,7 @@ pml4e64_t * create_passthrough_pts_64(struct guest_info * info) {
 
 
 int v3_walk_guest_pt_32(struct guest_info * info,  v3_reg_t guest_cr3,
-			int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+			void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
 			void * private_data) {
   addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
   pde32_t * guest_pde = NULL;
@@ -1479,7 +1479,7 @@ int v3_walk_guest_pt_32(struct guest_info * info,  v3_reg_t guest_cr3,
 
 
 int v3_walk_guest_pt_32pae(struct guest_info * info,  v3_reg_t guest_cr3,
-			   int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+			   void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
 			   void * private_data) {
   addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
   pdpe32pae_t * guest_pdpe = NULL;
@@ -1565,7 +1565,7 @@ int v3_walk_guest_pt_32pae(struct guest_info * info,  v3_reg_t guest_cr3,
 
 
 int v3_walk_guest_pt_64(struct guest_info * info,  v3_reg_t guest_cr3,
-			int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+			void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
 			void * private_data) {
   addr_t guest_pml_pa = CR3_TO_PML4E64_PA(guest_cr3);
   pml4e64_t * guest_pml = NULL;
@@ -1678,7 +1678,7 @@ int v3_walk_guest_pt_64(struct guest_info * info,  v3_reg_t guest_cr3,
 }
 
 int v3_walk_host_pt_32(v3_reg_t host_cr3,
-		       int (*callback)(int level, addr_t page_ptr, addr_t page_pa, void * private_data),
+		       void (*callback)(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data),
 		       void * private_data) {
   pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
   addr_t pde_pa = CR3_TO_PDE32_PA(host_cr3);
diff --git a/palacios/src/palacios/vmm_shadow_paging.c b/palacios/src/palacios/vmm_shadow_paging.c
index 933ef6b..702b6f0 100644
--- a/palacios/src/palacios/vmm_shadow_paging.c
+++ b/palacios/src/palacios/vmm_shadow_paging.c
@@ -80,6 +80,7 @@ static int handle_shadow_pagefault_64(struct guest_info * info, addr_t fault_add
 
 
 static int cache_page_tables_32(struct guest_info * info, addr_t pde);
+static int cache_page_tables_64(struct guest_info * info, addr_t pde);
 
 int v3_init_shadow_page_state(struct guest_info * info) {
   struct shadow_page_state * state = &(info->shdw_pg_state);
@@ -277,15 +278,26 @@ static int activate_shadow_pt_32pae(struct guest_info * info) {
   return -1;
 }
 
+static void activate_shadow_pt_64_cb(page_type_t type, addr_t page_ptr, addr_t page_pa, void * private_data) {
+  PrintDebug("CB: Page: %p, Type: %s\n", (void *)page_pa, v3_page_type_to_str(type));
+}
+
+
 static int activate_shadow_pt_64(struct guest_info * info) {
-  struct cr3_64 * shadow_cr3 = (struct cr3_64 *)&(info->ctrl_regs.cr3);
+  //  struct cr3_64 * shadow_cr3 = (struct cr3_64 *)&(info->ctrl_regs.cr3);
   struct cr3_64 * guest_cr3 = (struct cr3_64 *)&(info->shdw_pg_state.guest_cr3);
   int cached = 0;
   
+  v3_walk_guest_pt_64(info, info->shdw_pg_state.guest_cr3, activate_shadow_pt_64_cb, NULL);
+
+  
+
   return -1;
+
+
   // Check if shadow page tables are in the cache
   cached = cache_page_tables_64(info, CR3_TO_PDE32_PA(*(addr_t *)guest_cr3));
-  
+	      /*  
   if (cached == -1) {
     PrintError("CR3 Cache failed\n");
     return -1;
@@ -307,6 +319,7 @@ static int activate_shadow_pt_64(struct guest_info * info) {
   shadow_cr3->pcd = guest_cr3->pcd;
   
   return 0;
+		      */
 }